import { type QueueDeferred } from "https://deno.land/x/carriageway@v0.12.0/src/types.ts";
Queue item deferred promise
x/carriageway/src/types.ts>QueueDeferred
import { type QueueDeferred } from "https://deno.land/x/carriageway@v0.12.0/src/types.ts";
Queue item deferred promise